blocks concrete feature non-slip path paving rough safety slabs steps. circles white ancient Angkor Angkor-Wat angles appearance approach archaeological archaeology cambodia color colors colour colours contrast contrasting craftsmanship cultural culture design heritage historical history monument old paved pavement paving-blocks perspectives pitted shaped solid stones stonework surface surfaces temple-complex textured textures walkway weathered bird birds block cobble cobbled cobbling eye nature pigeon red road rock rocks saavem scene scenes stone street wing wings abstract angled background bricks brickwork Designs detailed detailing distinctive fit fitted fitting footpath grooves ground interlock interlocked interlocking level light pattern patterned patterns pavers paving-bricks shapes smooth colorful colourful